body {
	margin:0;
	background-color:rgb(168,168,168);
	font-family:"Microsoft YaHei","微软雅黑",Serif;
}
#redirectbox {
	display:block;
	width:520px;
	height:300px;
	position:absolute;
	top:50%;
	left:50%;
	margin:-150px -260px;
	overflow:hidden;
}
#redirectbox .modal-dialog {
	width:500px;
	height:300px;
}
.modal-footer .btn {
	width:100%;
}